Here's my attempt to compile the heritabilities (in the narrow sense of h^2) for many different interesting human traits. Before you read this, however, I recommend you read our piece on the Missing Heritability Problem, which provides important context for interpreting this information. Newer, genome-wide association studies tend to get substantially lower estimates for heritability than the twin study figures listed below, and it is still a debate in the field which approach to measuring h...